mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
498a4e2bd7
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer all now participate on a single sorted us list. The whole idea of polling wakes is thrown out, poll waits ignore the timeout field and always use infinite timeouts. Introduce a public api that can schedule its own callback from the event loop with us resolution (usually ms is all the platform can do). Upgrade timeouts and sequencer timeouts to also be able to use us resolution. Introduce a prepared fakewsi in the pt, so we don't have to allocate one on the heap when we need it. Directly handle vh-protocol timer if LWS_MAX_SMP == 1
147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
/*
|
|
* lws-minimal-raw-fallback http-server
|
|
*
|
|
* Written in 2010-2019 by Andy Green <andy@warmcat.com>
|
|
*
|
|
* This file is made available under the Creative Commons CC0 1.0
|
|
* Universal Public Domain Dedication.
|
|
*
|
|
* This demonstrates the most minimal http server you can make with lws.
|
|
*
|
|
* To keep it simple, it serves stuff from the subdirectory
|
|
* "./mount-origin" of the directory it was started in.
|
|
* You can change that by changing mount.origin below.
|
|
*
|
|
* In addition, if the connection does to seem to be talking http, then it
|
|
* falls back to a raw echo protocol.
|
|
*/
|
|
|
|
#include <libwebsockets.h>
|
|
#include <string.h>
|
|
#include <signal.h>
|
|
|
|
struct pss__raw_echo {
|
|
uint8_t buf[2048];
|
|
int len;
|
|
};
|
|
|
|
static int interrupted;
|
|
|
|
static const struct lws_http_mount mount = {
|
|
/* .mount_next */ NULL, /* linked-list "next" */
|
|
/* .mountpoint */ "/", /* mountpoint URL */
|
|
/* .origin */ "./mount-origin", /* serve from dir */
|
|
/* .def */ "index.html", /* default filename */
|
|
/* .protocol */ NULL,
|
|
/* .cgienv */ NULL,
|
|
/* .extra_mimetypes */ NULL,
|
|
/* .interpret */ NULL,
|
|
/* .cgi_timeout */ 0,
|
|
/* .cache_max_age */ 0,
|
|
/* .auth_mask */ 0,
|
|
/* .cache_reusable */ 0,
|
|
/* .cache_revalidate */ 0,
|
|
/* .cache_intermediaries */ 0,
|
|
/* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
|
|
/* .mountpoint_len */ 1, /* char count */
|
|
/* .basic_auth_login_file */ NULL,
|
|
};
|
|
|
|
static int
|
|
callback_raw_echo(struct lws *wsi, enum lws_callback_reasons reason, void *user,
|
|
void *in, size_t len)
|
|
{
|
|
struct pss__raw_echo *pss = (struct pss__raw_echo *)user;
|
|
|
|
switch (reason) {
|
|
case LWS_CALLBACK_RAW_ADOPT:
|
|
lwsl_notice("LWS_CALLBACK_RAW_ADOPT\n");
|
|
break;
|
|
|
|
case LWS_CALLBACK_RAW_RX:
|
|
lwsl_notice("LWS_CALLBACK_RAW_RX %ld\n", (long)len);
|
|
if (len > sizeof(pss->buf))
|
|
len = sizeof(pss->buf);
|
|
memcpy(pss->buf, in, len);
|
|
pss->len = len;
|
|
lws_callback_on_writable(wsi);
|
|
break;
|
|
|
|
case LWS_CALLBACK_RAW_CLOSE:
|
|
lwsl_notice("LWS_CALLBACK_RAW_CLOSE\n");
|
|
break;
|
|
|
|
case LWS_CALLBACK_RAW_WRITEABLE:
|
|
lwsl_notice("LWS_CALLBACK_RAW_WRITEABLE\n");
|
|
lws_write(wsi, pss->buf, pss->len, LWS_WRITE_HTTP);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return lws_callback_http_dummy(wsi, reason, user, in, len);
|
|
}
|
|
|
|
static const struct lws_protocols protocols[] = {
|
|
{ "raw-echo", callback_raw_echo, sizeof(struct pss__raw_echo), 2048 },
|
|
{ NULL, NULL, 0, 0 }
|
|
};
|
|
|
|
void sigint_handler(int sig)
|
|
{
|
|
interrupted = 1;
|
|
}
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
struct lws_context_creation_info info;
|
|
struct lws_context *context;
|
|
const char *p;
|
|
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE;
|
|
|
|
signal(SIGINT, sigint_handler);
|
|
|
|
if ((p = lws_cmdline_option(argc, argv, "-d")))
|
|
logs = atoi(p);
|
|
|
|
lws_set_log_level(logs, NULL);
|
|
lwsl_user("LWS minimal raw fallback http server | "
|
|
"visit http://localhost:7681\n");
|
|
|
|
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
|
|
info.port = 7681;
|
|
info.protocols = protocols;
|
|
info.mounts = &mount;
|
|
info.error_document_404 = "/404.html";
|
|
info.options =
|
|
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE |
|
|
LWS_SERVER_OPTION_FALLBACK_TO_APPLY_LISTEN_ACCEPT_CONFIG;
|
|
info.listen_accept_role = "raw-skt";
|
|
info.listen_accept_protocol = "raw-echo";
|
|
|
|
if (lws_cmdline_option(argc, argv, "-s")) {
|
|
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
|
|
LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT;
|
|
info.ssl_cert_filepath = "localhost-100y.cert";
|
|
info.ssl_private_key_filepath = "localhost-100y.key";
|
|
|
|
if (lws_cmdline_option(argc, argv, "-u"))
|
|
info.options |= LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS;
|
|
|
|
if (lws_cmdline_option(argc, argv, "-h"))
|
|
info.options |= LWS_SERVER_OPTION_ALLOW_HTTP_ON_HTTPS_LISTENER;
|
|
}
|
|
|
|
context = lws_create_context(&info);
|
|
if (!context) {
|
|
lwsl_err("lws init failed\n");
|
|
return 1;
|
|
}
|
|
|
|
while (n >= 0 && !interrupted)
|
|
n = lws_service(context, 0);
|
|
|
|
lws_context_destroy(context);
|
|
|
|
return 0;
|
|
}
|